Sewing-machine loop taker



y 1949. c. H. PETSKEYES 2,469,517

SEWING MACHINE LOOP TAKER Filed March 8, 1948 INVEN TOR.

waves/22355;! e5 BY Z Patented May 10, 1949 SEWING-MACHINE LOOP TAKER Charles H. Petskeyes, Davenport, Iowa, assignor to Gellman Manufacturing Company, Rock Island, 111., a corporation of Illinois Application March 8, 1948, Serial No. 13,684

3 Claims.

This invention relates to sewing machine loop takers and more particularly to that type of loop taker known as the revolving hook.

The invention more specifically relates to and has for its principal object the provision of a novel and simple arrangement for yieldably connecting the gib ring to the hook to form therewith a track or raceway for the flange of the bobbin case holder.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings showing the preferred form of construction, and in which:

Fig. l is a side elevational view of the loop taker looking in the direction of the arrows 1-5 of Fig. 3;

Fig. 2 is a side elevational View looking in the direction of the arrows 2-2 of Fig. 3;

Fig. 3 is a plan view of the same;

Fig. 4 is a bottom view of the same;

Fig. 5 is a sectional detail View taken substantially on line 5-5 of Fig. 3;

Fig. 6 is a sectional detail view taken substantially on line 66 of Fig. 3; and

Fig. '7 is an exploded view illustrating the several parts comprising my improved loop taker.

Referring more particularly to the drawings, in which the preferred form of construction of my invention is shown, an operating shaft is indicated at 10. To this operating shaft is fixedly secured in any approved manner the hook member l i. In the walls l2 of the hook member there is formed an internal groove l3. Connected to this hook member and providing together with the groove I3, a raceway or track, is a gib ring M.

The bobbin case holder is indicated at 15. This bobbin case holder I5 provides an annular laterally extending flange 16 which is adapted to project into the track or raceway.

In this bobbin case I5 is adapted to be mounted in the usual and conventional manner, the bobbin (not shown).

The gib ring [4 has formed therein openings ll which register with openings 3 formed in the wall l2 of the hook member. This hook member includes the loop taker I9 and the conventional thread guard 20, the latter being attached to the loop taker by suitable screws 2 I.

The openings ll are preferably countersunk to receive the tapered heads 22 of connecting bolts 23 when these bolts 23 are projected through the openings l8. Corresponding end portions 24 are provided with transverse openings 25.

A flexed bridging plate 26 of resilient material is provided. This bridging plate has oppositely extending arms 21' provided with openings 28 through which project the end portions 24 of the bolts 23. A key is provided for retaining the bridging plate upon the bolts 23. This key 29 is in the form of an elongated strip of spring material having its medial portion 30 bent to pass clear of the opening 3| formed in the plate 26, which opening 3| provides a clearance for the shaft Ill. The end portions of this key are angled as at 3'2 and are projected through the openings 25. The tendency of the plate 26 to flex when the arms 27 thereof are pressed upon the end portions 24 of the bolts 23, serve to bear these arms 2'! upon the end portions 32 of the key so as to retain the key in the position shown in Fig. 4.

By the provision of this key and the bridging plate a simple and expeditious arrangement is provided for yieldably connecting the gib ring H to the wall l2 of the hook in substantially flat engagement with the adjacent edge 33 of the wall l2. By simply displacing the key from hooked engagement with the bolts 23, the gib ring can be readily disconnected from the hook member. The flexed bridging plate serves to yieldably hold the gib ring flatly against the edge 33 of the hook member.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is:

1. The combination With a hook member and the gib ring thereof, of means for detachably connecting the gib ring to the hook member comprising connecting bolts projected through registered openings formed in the gib ring and hook member and having corresponding end portions provided with transverse openings, a flexed resilient plate positioned against the bottom of the hook member and having oppositely disposed openings formed therein for the projection therethrough of the end portions of said connecting bolts, and an elongated resilient wire member arranged in abutting relation with respect to said hook member and having oppositely disposedopenings formed therein for the projection therethrough of the end portions of said=connecting bolts, and an elongated resilient wire member arranged in abutting relation with respect'to said plate and having angled end portions adapted .to-

be projected through the transverse openings of said connecting bolts, the portions of said resilient plate providing said openings being compressed between said'ho'ok member and the angled end portions of said wire member.

3. The combination with a hook member and the gib ring thereof, of means for detachably connecting the gib ring to the hook member comprising connecting bolts projected through registered openings formed in the gib ring and hook member and having corresponding end portions provided with transverse openings, a flexed resilient. plate. positioned: against the. bottom of the hook member and having cppositely'disposed openings formed therein for the projection therethrough of the end portions of said connecting bolts, and a resilient key projected through the transverse openings of said connecting bolts, the portions of said resilient plate having openings therein being compressed between said key and said hook'member;

CHARLES H. PETSKEYES.

No references cited. 

